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Question

What is the angle through which the incident ray deviates and emerges out of the prims?

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Solution

Angle between incident and emergent ray by the prism is $90^{o}$ . The incident ray deviates by $90^{o}$ and emerges out of the prism.

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Q. A ray of light is incident on one of the faces of the prism with an angle

40^{\circ}

with the surfaces. The angle of the prism is

60^{\circ}

. The emergent ray deviates through an angle

38^{\circ}

then, the angle of emergence is:

Q. The total deviation of the incident ray when it emerges out of the prism is.

Q. The angle through which the incident ray is deviated by the prism is called the angle deviation.

Q. The angle of deviation through a prism is minimum when

(A) Incident ray and emergent ray are symmetric with respect to the prism.
(B) The refracted ray inside the prism becomes parallel to its base.
(C) Angle of incidence is equal to angle of emergence.
(D) When the angle of emergence is double the angle of incidence.
Choose the correct answer from the options given below:

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